Digital Light Sensor - TSL2561 disconnections

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#1

Hi,
I am using this light sensor with Digital_Light_TSL2561 library.
After reading the sensor with this line: TSL2561.readVisibleLux(), The code gets stuck when the sensor is being disconnected(physically).
Is there a way to prevent this from happening with code? I would like to know when it is connected or disconnected.
Thanks.

#2

One solution is that you can check the Wire(I2C) communication established or not before reading the value from the sensor.

like this

#include <Wire.h>
#include <Digital_Light_TSL2561.h>
void setup() {
  Wire.begin();
  Serial.begin(9600);
  TSL2561.init();
}

void loop() {

  if (Wire.available()) {
    Serial.println("Sensor is Present");
    Serial.print("The Light value is: ");
    Serial.println(TSL2561.readVisibleLux());
    delay(1000);
  }
  else {
    Serial.println("Sensor error! please check sensor");
  }

}
#3

Hi,
Thanks for the reply.
It works if it is the only i2c device available, what if I 2 devices and one is still connected? Is there a way to distinguish between addresses?

#4

Yes, Using the address you can check the availability .